Electro-optic rearview mirror assembly for vehicle

• US 8,665,510 B2
• Filed: 08/05/2013
• Issued: 03/04/2014
• Est. Priority Date: 03/30/2009
• Status: Active Grant

• Current Assignee: Donnelly Corporation (Magna International Incorporated)
• Original Assignee: Donnelly Corporation (Magna International Incorporated)
• Inventors: Uken, John T., Baur, Michael J., McCabe, Ian A., Habibi, Hamid
• Primary Examiner(s): Lester, Evelyn A.
• Application Number:
  US13/959,036
• Publication Number:
  US 20130314761A1
• Time in Patent Office: 211 Days
• Field of Search: 359/245, 359/267, 359/844, 359/850, 359/871, 359/883
• US Class Current: 359/267
• CPC Class Codes: B60R 1/04 mounted inside vehicle B60R1/025, B60R1/08 take precedence
• CPC Class Codes: B60R 1/088 using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
• CPC Class Codes: B60R 16/0215 Protecting, fastening and routing means therefor
• CPC Class Codes: G02F 1/133553 Reflecting elements associated to illuminating devices G02F1/133605
• CPC Class Codes: G02F 1/153 Constructional details
• CPC Class Codes: G02F 1/157 Structural association of cells with optical devices, e.g. reflectors or illuminating devices
• CPC Class Codes: Y10T 29/49162 by using wire as conductive path
• CPC Class Codes: Y10T 29/49169 Assembling electrical component directly to terminal or elongated conductor

Abstract

A reflective element assembly for a vehicular rearview mirror assembly includes front and rear substrates with an electro-optic medium disposed therebetween. An electrical connector has an attachment portion and a wire receiving portion for receiving an electrical wire therein. A flange of the attachment portion is configured to be disposed at a fourth surface of the rear substrate and a tab is configured to extend at least partially across a perimeter edge of the rear substrate. An electrically conductive material is disposed in an uncured state and uncured electrically conductive material flows at least partially through the aperture and is cured to secure the electrical connector at the rear substrate. The wire receiving portion of the electrical connector is configured to receive the electrical wire therein and includes at least one tang that engages the electrical wire when the electrical wire is inserted into the wire receiving portion.

Claims

1. A reflective element assembly for a vehicular rearview mirror assembly, said reflective element assembly comprising:

a front substrate having first and second surfaces;

a transparent conductive coating established at said second surface;

a rear substrate having third and fourth surfaces;

a third surface reflector established at said third surface;

an electro-optic medium disposed between said front and rear substrates;

wherein a perimeter region of said front substrate is offset from a perimeter region of said rear substrate such that an offset region is established at said perimeter region;

wherein an electrical connector comprises an attachment portion and a wire receiving portion for receiving an electrical wire therein;

wherein said attachment portion comprises a flange having at least one aperture formed therethrough and said attachment portion comprises at least one tab, and wherein said flange is configured to be disposed at said fourth surface of said rear substrate and said at least one tab is configured to extend at least partially across a perimeter edge of said rear substrate when said flange of said electrical connector is disposed at said offset region;

wherein an electrically conductive material is disposed in an uncured state at said offset region;

wherein said electrical connector is disposed at said electrically conductive material when said electrically conductive material is uncured, whereby uncured electrically conductive material at said fourth surface flows at least partially through said at least one aperture;

wherein, after said electrical connector is disposed at said offset region, said electrically conductive material is cured to secure said electrical connector at said rear substrate; and

wherein said wire receiving portion of said electrical connector is configured to receive said electrical wire therein and includes at least one tang that engages said electrical wire when said electrical wire is inserted into said wire receiving portion, securing said electrical wire in said wire receiving portion and making electrical contact with said electrical wire.

2. The reflective element assembly of claim 1, wherein said electrical connector comprises a stamped metallic connector.

3. The reflective element assembly of claim 1, wherein said electrical connector electrically connects said electrical wire to said transparent conductive coating at said second surface of said front substrate.

4. The reflective element assembly of claim 3, wherein electrically conductive continuity is established between said at least one tab and said transparent conductive coating at said second surface of said front substrate via said electrically conductive material disposed at said offset region.

5. The reflective element assembly of claim 1, wherein said electrical connector electrically connects said electrical wire to a metallic conductive layer at said third surface of said rear substrate.

6. The reflective element assembly of claim 5, wherein said tab of said electrical connector is part of a clip element for clipping onto the perimeter edge of said rear substrate.

7. The reflective element assembly of claim 1, wherein said at least one tang of said electrical connector comprises at least one flexible tab having an edge that engages and bites into said electrical wire when said electrical wire is inserted into said wire receiving portion of said electrical connector.

8. The reflective element assembly of claim 7, wherein said wire receiving portion of said electrical connector comprises a contacting surface for engaging said electrical wire when said electrical wire is inserted into said wire receiving portion of said electrical connector.

9. The reflective element assembly of claim 1, wherein said electrical wire comprises a stripped end of a wire of a wire harness of the vehicle.

10. The reflective element assembly of claim 1, wherein said electrically conductive material comprises an electrically conductive epoxy.

11. A reflective element assembly for a vehicular rearview mirror assembly, said reflective element assembly comprising:

a front substrate having first and second surfaces;

a transparent conductive coating established at said second surface;

a rear substrate having third and fourth surfaces;

a third surface reflector established at said third surface;

an electro-optic medium disposed between said front and rear substrates;

wherein a perimeter region of said front substrate is offset from a perimeter region of said rear substrate such that an offset region is established at said perimeter region;

wherein an electrical connector comprises an attachment portion and a wire receiving portion for receiving an electrical wire therein;

wherein said electrical connector comprises a stamped metallic connector;

wherein said attachment portion comprises a flange having at least one aperture formed therethrough and said attachment portion comprises at least one tab, and wherein said flange is configured to be disposed at said fourth surface of said rear substrate and said at least one tab is configured to extend at least partially across a perimeter edge of said rear substrate when said flange of said electrical connector is disposed at said offset region;

wherein an electrically conductive material is disposed in an uncured state at said offset region;

wherein said electrical connector is disposed at said electrically conductive material when said electrically conductive material is uncured, whereby uncured electrically conductive material at said fourth surface flows at least partially through said at least one aperture;

wherein, after said electrical connector is disposed at said offset region, said electrically conductive material is cured to secure said electrical connector at said rear substrate;

wherein said wire receiving portion of said electrical connector is configured to receive said electrical wire therein and includes at least one tang that engages said electrical wire when said electrical wire is inserted into said wire receiving portion, securing said electrical wire in said wire receiving portion and making electrical contact with said electrical wire;

wherein said electrical connector electrically connects said electrical wire to said transparent conductive coating at said second surface of said front substrate; and

wherein electrically conductive continuity is established between said at least one tab and said transparent conductive coating at said second surface of said front substrate via said electrically conductive material disposed at said offset region.

12. The reflective element assembly of claim 11, wherein said at least one tang of said electrical connector comprises at least one flexible tab having an edge that engages and bites into said electrical wire when said electrical wire is inserted into said wire receiving portion of said electrical connector.

13. The reflective element assembly of claim 12, wherein said wire receiving portion of said electrical connector comprises a contacting surface for engaging said electrical wire when said electrical wire is inserted into said wire receiving portion of said electrical connector.

14. The reflective element assembly of claim 11, wherein said electrical wire comprises a stripped end of a wire of a wire harness of the vehicle.

15. The reflective element assembly of claim 11, wherein said electrically conductive material comprises an electrically conductive epoxy.

16. A reflective element assembly for a vehicular rearview mirror assembly, said reflective element assembly comprising:

a front substrate having first and second surfaces;

a transparent conductive coating established at said second surface;

a rear substrate having third and fourth surfaces;

a third surface reflector established at said third surface;

an electro-optic medium disposed between said front and rear substrates;

wherein a perimeter region of said front substrate is offset from a perimeter region of said rear substrate such that an offset region is established at said perimeter region;

wherein an electrical connector comprises an attachment portion and a wire receiving portion for receiving an electrical wire therein;

wherein said electrical connector comprises a stamped metallic connector;

wherein said attachment portion comprises a flange having at least one aperture formed therethrough and said attachment portion comprises at least one tab, and wherein said flange is configured to be disposed at said fourth surface of said rear substrate and said at least one tab is configured to extend at least partially across a perimeter edge of said rear substrate when said flange of said electrical connector is disposed at said offset region;

wherein an electrically conductive material is disposed in an uncured state at said offset region;

wherein said electrical connector is disposed at said electrically conductive material when said electrically conductive material is uncured, whereby uncured electrically conductive material at said fourth surface flows at least partially through said at least one aperture;

wherein, after said electrical connector is disposed at said offset region, said electrically conductive material is cured to secure said electrical connector at said rear substrate;

wherein said wire receiving portion of said electrical connector is configured to receive said electrical wire therein and includes at least one tang that engages said electrical wire when said electrical wire is inserted into said wire receiving portion, securing said electrical wire in said wire receiving portion and making electrical contact with said electrical wire; and

wherein said electrical connector electrically connects said electrical wire to a metallic conductive layer at said third surface of said rear substrate.

17. The reflective element assembly of claim 16, wherein said tab of said electrical connector is part of a clip element for clipping onto the perimeter edge of said rear substrate.

18. The reflective element assembly of claim 16, wherein said at least one tang of said electrical connector comprises at least one flexible tab having an edge that engages and bites into said electrical wire when said electrical wire is inserted into said wire receiving portion of said electrical connector.

19. The reflective element assembly of claim 18, wherein said wire receiving portion of said electrical connector comprises a contacting surface for engaging said electrical wire when said electrical wire is inserted into said wire receiving portion of said electrical connector, and wherein said electrical wire comprises a stripped end of a wire of a wire harness of the vehicle.

20. The reflective element assembly of claim 16, wherein said electrically conductive material comprises an electrically conductive epoxy.